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Seminar: Oz M. Gazit, Israel Institute of Technology-Technion, “Challenges in catalyst design for the oxidative coupling of methane”

Date/Time: 

Tuesday, June 28, 2022 - 11:30am

Location: 

LGRT 201 & via Zoom (email wallace@ecs.umass.edu for a link)

Details: 

Abstract

The direct conversion of methane to ethane and ethylene is viewed as a highly attractive route for making large scale value-added chemicals. Moreover, if the process can be viable at a small scale it could help mitigate greenhouse gas emissions at remote locations. The simple answer that turns out to be very complicated is to make identify a catalyst system that is active and selective (enough) and most importantly has long term stability.

In the current talk I will discuss our studies related to OCM promotion using the MnOx/NaWO4/SiO2 catalyst, which is considered one of the most promising catalysts for this reaction. In my talk I will show the importance of selecting the right precursors for making the catalyst and how they affect catalytic performance. I will demonstrate how we can use a simple macroscopic statistical correlation between kinetic parameters and catalyst properties to gain insights for catalyst design. Finally, I will show two concepts for suing dopants to promote the reaction as well as discuss the strong effect of catalyst deactivation under the reaction conditions.

 

Bio

Oz M. Gazit is an associate professor at the Technion in Israel. Before that he did his PhD at the Technion working developing metal oxide-polymer composite materials. He then did a postdoc at UC-Berkeley working on depolymerization of cellulose using metal oxide. His group at the Technion studies catalytic processes related to methane activation and the conversion of biomass derived molecules. The group develops new materials and new approaches for material design with the main focus being to understand the complex fundamentals of cooperative and synergistic interactions in supported metal or metal oxide catalysts and how those manifests in catalysis.

 
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